Its presence greatly influences the entire plant metabolism. Plants can’t move away and are therefore always confronted with serious environmental conditions. Plants have to endure with a variety of abiotic stresses, such as soil salinity, cold, heat, drought, flooding and heavy metal contamination. This text particularly emphasized on the effect of cadmium toxicity in green gram (Phaseolus aureus L.). Among heavy metals, cadmium is a non-essential and toxic metal, rapidly taken up by roots and accumulated in various plant tissues which obstruct the crop growth and productivity worldwide.